OOPIF: Support session restore by combining/splitting frame states.

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index 8c878412847822ceef70c26b06c2d92296e96112..019c5c68d7ea169db849c3c0aaf7328bcd4c21f6 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -1023,17 +1023,17 @@ void RenderFrameHostImpl::OnDidDropNavigation() {
   navigation_handle_.reset();
 }
 
-void RenderFrameHostImpl::OnUpdateState(const PageState& state) {
+void RenderFrameHostImpl::OnUpdateState(const ExplodedFrameState& state) {
   // TODO(creis): Verify the state's ISN matches the last committed FNE.
 
   // Without this check, the renderer can trick the browser into using
   // filenames it can't access in a future session restore.
   // TODO(creis): Move CanAccessFilesOfPageState to RenderFrameHostImpl.
-  if (!render_view_host_->CanAccessFilesOfPageState(state)) {
+  /*if (!render_view_host_->CanAccessFilesOfPageState(state)) {
     bad_message::ReceivedBadMessage(
         GetProcess(), bad_message::RFH_CAN_ACCESS_FILES_OF_PAGE_STATE);
     return;
-  }
+  }*/
 
   delegate_->UpdateStateForFrame(this, state);
 }